fluke india temperature presentation

7/31/2019 Fluke India Temperature Presentation

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Infrared Digital

Thermometers


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Infrared thermometers are designed for applications

requiring users to instantly measure temperature inhard-to-reach areas

http://www.fluke.com/fluke/inen/products/Thermometers.htm


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Temperature measurement

Contact Type Thermometers Uses temperature probes / thermo-couples

Highly accurate, good for Lab / calibration work

Non-Contact Thermometers Uses Infra Red beams to measure surface temperature

Moderate accuracy for day to day work


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Why IR thermometers - 3 main reasons

Safety From high temperature objects

From high voltages (temperature at circuit

breakers terminals, bus-bars)

Moving objects - Rotating motors, conveyors,

belts

Hard to Reach Object mounted at heights

Object mounted inside safety perimeter

Objects at hard to reach places

Convenience IR thermometer is easy to use

Just point-shoot-measure


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Emissivity

A numerical value between 0 and 1 which indicates the ability of an

object to emit infrared energy.

Emissivity is determined primarily by the material from which an

object is constructed and its surface finish.

Examples:

Polished brass: 0.03

Roughly polished copper: 0.07

Black lacquer paint: 0.96

Circuit boards

Important Parameters IR Thermometers


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DISTANCE TO SPOT RATION

Ratio of the distance from the measured object vs. sampling

spot size

EXAMPLES:

- 4:1 optical resolution: 4 away from measured object1

diameter

- 12:1 optical resolution: 24 away from measured object2

diameter

OBJECT SIZE

Know your application! An IR device with a 4:1 optical

resolution

can not effectively be used to measure a diffuser temperature

15 away.


7/13http://www.fluke.com/fluke/inen/products/Thermometers.htm

FIELD OF VIEW

- Field of view refers to the target size relative to the IR thermometers spot size .

- Ideally, the target surface to be measured should be twice the size of the spot .

- If the spot size is larger than the surface to be measured, measurement errors are

increased .

- Spot size calculator www.Fluke.Com

http://www.fluke.com/http://www.fluke.com/



HOW DOES IR THERMOMETER WORK

Infrared thermometers measure the surface

temperature of an opaque object

The thermometers optics sense emitted,

reflected, and transmitted energy, which is

collected and focused onto a Detector

The units electronics translate the information

into a temperature reading which the unit

displays



IMPORTANT SPECIFICATIONSFOR SELECTION OF RIGHT IRTHERMOMETER

Temperature range

Measurement accuracy

Distance to Spot Ratio

Rugged & Reliable

Response time

Display resolution

Battery life


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OPERATING THE IR THERMOMETER

To measure temperature, point the thermometer at an object and pull the trigger.

Laser pointer to help aim the thermometer

To find a hot or cold spot, aim the thermometer outside the desired area.

As the distance from the object being measured increases, the spot size of the area

measured by the unit becomes larger

For accurate measurements, make sure that the target is larger than the units spot

size

The display retains its last infrared measurement for twenty seconds when the trigger

is released, with HOLD appearing on the display

The stored data can be downloaded to a personal computer (PC) via the

included USB cable and the included Fluke View Forms Documenting Software



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SAFETY PRECAUTIONS

Before using the thermometer inspect the case. Do not use the thermometer if it appears

damaged. Look for cracks or missing plastic. Pay particular attention to the insulation

around the connectors

Disconnect the thermocouple(s) from the thermometer before opening the case

Replace the batteries as soon as the battery indicator appears. The possibility of false

readings can lead to personal injury

Do not use the thermometer if it operates abnormally. Protection may be impaired. When

in doubt, have the thermometer serviced / calibrated at authorized labs.

Reflective objects result in lower than actual temperature measurements. These objects

pose a burn hazard

Do not operate the thermometer around explosive gas, vapor, or dust




Company Name : Fluke Corporation - India

Website: http://www.fluke.com/fluke/inen/home/default.htm

Address: Division of DHR Holding India Pvt. Ltd.10th Floor, Sigma

Hiranandani Business Park, Powai

Mumbai, Maharashtra 400076

ContactNumber: 1 800 209 9110
http://www.fluke.com/fluke/inen/home/default.htmhttp://www.fluke.com/fluke/inen/home/default.htmhttp://www.fluke.com/fluke/inen/home/default.htm


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Thank You

fluke india temperature presentation

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